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by londons_explore 2551 days ago
Small MSS is often IoT devices which only have a kilobyte or so of RAM, so often have an MSS of below 256 bytes. They won't be rendering a webpage, but are totally capable of doing REST API requests.

More and more are moving away from $0.25 microcontrollers, and up to $5 SoC's running Linux, so the problem is going away gradually...